Puzzle Agent BUG : Puzzle 2

There is a htread on Steam forums about this but I assume it would be better to have one here as well. It looks like people with GTX470 & GTX 480 cards can't complete the second puzzle ( the hotel ). Icons are invisible ( no agent or lights ) and logs stay behind the map so you can't drag them onto it...

Very frustrating to be stuck at the very beginning of the game by a bug

Bumpity... Played the demo and got stuck at second puzzle with same symptoms - logs are behind the map, no streetlights or anything on the map. Also have a Geforce 460 card, windows 7. Telltale can't afford a new graphics card for the devs to fix this? 0.o

Very sad I won't be able to play this game, I was all set to buy it....